Renesas M16C Series User Manual page 50

M30245 Group
cessive reception mode disabled
(6) Input to the serial I/O and the direction register
To input an external signal to the serial I/O, slect the function select register A to I/O port and set the
direction register to input.
(7) Pins related to the serial I/O
_______
• CTS
________
• RTS
• CLK
• RxD
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• TxD
Note: Since TxD
(8) Registers related to the serial I/O
Figure 2.3.1 shows the memory map of serial I/O-related registers, and Figures 2.3.2 to 2.3.4 show
serial I/O-related registers.
0042 UART2 receive/ACK interrupt control register (S2RIC)
16
0048
16
UART1 receive/ACK/SSI1 interrupt control register (S1RIC)
004A
16
UART0 receive/ACK/SSI0 interrupt control register (S0RIC)
UART3 transmit/NACK interrupt control register (S3TIC)
004D
16
004F
16 UART2 transmit/NACK interrupt control register (S2TIC)
0051
16
UART1 transmit/NACK/SSI1 interrupt control register (S1TIC)
0053
16 UART0 transmit/NACK/SSI0 interrupt control register (S0TIC)
UART3 receive/ACK interrupt control register (S3RIC)
0055
16
0328 UART3 transmit / receive mode register (U3MR)
16
0329
16
UART3 bit rate generator (U3BRG)
032A
16
UART3 transmit buffer register (U3TB)
032B
16
UART3 transmit / receive control register 0 (U3C0)
032C
16
032D
16 UART3 transmit / receive control register 1 (U3C1)
032E
16
UART3 receive buffer register (U3RB)
032F
16
0338
UART2 transmit / receive mode register (U2MR)
16
0339
16
UART2 bit rate generator (U2BRG)
033A
16
UART2 transmit buffer register (U2TB)
033B
16
033C UART2 transmit / receive control register 0 (U2C0)
16
033D UART2 transmit / receive control register 1 (U2C1)
16
033E
16
UART2 receive buffer register (U2RB)
Figure 2.3.1. Memory map of serial I/O-related registers
Rev.2.00 Oct 16, 2006
REJ09B0340-0200
________ ________ _______
, CTS , CTS , CTS pins
0 1 2 3
________ ________ _______
, RTS , RTS , RTS pins
0 1 2 3
, CLK , CLK , CLK pins
0 1 2 3
, RxD , RxD , RxD pins
0 1 2 3
, TxD , TxD , TxD pins
0 1 2 3
pin is N-channel open drain, this pin needs pull-up resistor.
2
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_______
Input pins for the CTS function
_______
Output pins for the RTS function
Input/output pins for the transfer clock
Input pins for data
Output pins for data (Note)
0368
16 UART1 transmit / receive mode register (U1MR)
0369
16
UART1 bit rate generator (U1BRG)
036A
16
UART1 transmit buffer register (U1TB)
036B
16
036C
16
UART1 transmit / receive control register 0 (U1C0)
036D
16
UART1 transmit / receive control register 1 (U1C1)
036E
16
UART1 receive buffer register (U1RB)
036F
16
03A8 UART0 transmit / receive mode register (U0MR)
16
03A9
16 UART0 bit rate generator (U0BRG)
03AA
16
UART0 transmit buffer register (U0TB)
03AB
16
03AC UART0 transmit / receive control register 0 (U0C0)
16
03AD
16 UART0 transmit / receive control register 1 (U0C1)
03AE
16
UART0 receive buffer register (U0RB)
03AF
16
2. Clock-Synchronous Serial I/O